Safety means for fluid-dispensing pumps



Dec. 11, 1928.

A. R. MASON ET AL SAFETY MEANS FOR FLUID DISPENSING PUMPS Filed Aug. 17, 1927 Even l1 Patented Dec. 11, i928.

UNITED STATES PATENT OFFICE.)

ARTHUR R. MASON AND OTTO C. FAILING, F MEDFORD, OREGON, ASSIGNORS ACCURATE GASOLINE RECORDING COMPANY, A CORPORATION OF OREGON. I

SAFETY MEANS FOR FLUID-DISPENSING PUMPS. A

Application filed. August 17, 1927. Serial No. 213,689.

Our invention has for its principal object means for furnishing a customer and a salesman each with a check or printed slip show- 8 ing the amount of fluid dispensed from a pump for each completed transaction, and

. wherein a further slip or paper strip is reinvention providing that said strip is first produced within a closed compartment and until the transaction is completed, at which time the cutting of the strip releases .and exposes the strip from the locked means,

In this Waythe customer is insured against an incorrect record different from the goods dispensed on his'purchase and is secured a slip record for the full amountof his purchase. Thus where a customer drives up to a conventional gasoline station and asks to have his automobile tank filled with gasoline it is not necessary for him to leave the drivers seat to insure the quantity of gasoline for which he pays being pumped into the tank. This is attained through the mechanism of our invention which reels off a paper strip of a length proportional to the amount of gasoline pumped and which strip, when the transaction is completed, is cut and presented to the purchaser showing by its length and I any suitable characters and/or scale printed thereon, the amount of gasoline which the pump has just delivered.

Other objects will appear from the drawing and specifications which follow:

In the drawing, Fig. 1 represents a conventional oil or gasoline pump as employed in filling stations.

Fig. 2 is a-front view of our safety casing in its closed position.

Fig. 3 is a section of Fig. 2 on the line III-III thereof, with the casing shown in its opened position.

Fig. 4 is a detail of the cutting knife.

Fig. 5 is a section on the line V-V of Fig. 2.

Throughout the figures, similar numerals refer to identical parts.

The numeral 1 indicates a pump column and 2 a piston operating therein as in a conventional gasoline or lubricating oil pump.

At 3 is the storage supply from whichthe pump abstracts fluid upon the rotationof the handle 8 through which the rack 7 raises the piston 2. l

Fluidis delivered through the pipe 5 to the chamber 6 and thence is dispensed through the spout 4E.

p The front of the box housing the pump operating mechanism is provided with a 'delivery slot 14: for the discharge of an un-T reeled portion, of a paper stripor strips cor responding in length to the quantity of fluid discharged by the pump in each sales transaction. This slot is normally housed completely by the casing 11 so that the paper strip isinaccessible until it is sheared or cut off when the housing automatically opens and the strip is discharged, completing the sales transaction. g i p The delivery slot 1 1 is provided on its top with a cutting edge engaging the shear blade 16thereby shearing the paper strip with a smooth clean out, while the bottom edge of this delivery slot is provided with a toothed or serrated edge 23 whereby, should the operator attempt to pull out the paper strip without operating the pump the sharp teeth will engage the paper strip and tear it off in a zig-zag manner disclosing misuse.

The numeral 10 indicates a box member containing our mechanism whose actuating upon the rotation of the handle 8 operates the paper strips.

This mechanism is fully set forth in our co-pending application vSerial No. 218,688, filed Aug. 17, 1927, to which reference is herein made. p

The present invention refers more specifically to the control and delivery of the paper or record strips after they are produced by the said mechanism.

At 11 is a safety casing having a glass front 12 hinged at 13 and normally covering the dispensing slot 14: from which issues one or more paper strips as 24:, 25.

The casing 11 has an arm 15 projecting through the box-10.

A cutting knife is indicated at 16 actuated by the handle 17 about the pivot 18 and fixed with the said knife and lever 20 and extend-' ing to the inside of the box 10.

The arm 15 and lever 20 are connected by the rod 21 such that the swinging of the hanloo llU

dle 17 in the direction of the arrow 26 cuts the paper and also swings open the cover or casing 11.

When the casing is in the closed position of Figs. 2 and the knife occupies the full line positions of Figs. 2 and 4 and when the knife is operated the cover is raised to the position of Fig. 3 to deliver the record strips, the knife being shifted from the full line position of Fig. 4 in the direction of the arrow 26 until it occupies the dotted line position of Fig. 2, thereby cutting the paper strip as it has been delivered through the slot 14.

Before more paper can be delivered through this slot the knife must be returned to the full line position closing the casing 11.

It will now be seen that to secure the record strip from the machine the operator must cut the same, and that after the knife has once started to cut, more paper cannot be withdrawn from the machine until the cut is completed.

In other words every amount of fluid dispensed from the pump will be indicated by or upon the paper strip and in order to deliver this paper strip to the customer, the operator must cut the same, and the length cut off, on which is recorded by the mechanism of our co-pending application to which reference is made above, will indicate the exact amount of fluid dispensed by the pump in the transaction.

We claim:

1. Safety means for fluid dispensing pumps, comprising a box and mechanism within said box adapted to operate synchronously with said pump and adapted to advance a plurality of paper strip records of each dispensing transaction, a compartment into Which said strips are advanced, a hinged cover normally closing said compartment, hand operated cutting means on said box adapted to cut the advanced strips, and operating connections between the cutting means and the cover constructed and adapted to hold the cover closed except when the cutting means is employed to cut the strips and upon said cutting to open the cover and deliver the strips.

2. Safety means for fluid dispensing pumps as set forth in claim 1 wherein said operating connections are within the box, and the compartment and the cover and the knife are outside of said box.

3. Safety means for fluid dispensin pumps as set forth in claim 1 wherein sai operating connections comprise a pivot pin extending through said box on which said cutting means is fixed external to said box, a lever fixed on said pivot within said box, a hinge between said cover and said box, an arm from said cover extending Within said box and a connecting rod between the arm and the lever, whereby when the cutting means is operated the cover is opened releasing the cut strips.

ARTHUR R. MASON. OTTO C. FAILING. 

